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    <p>For making changes you can add <code>ItemListener</code> to your <code>JCheckBox</code> and <code>JRadioButtons</code> and for <code>JTextField</code> you can add <code>CaretListener</code>.</p> <p>This small program might help you :</p> <pre><code>import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.CaretListener; import javax.swing.event.CaretEvent; public class StateChangedEventClass extends JFrame { private JPanel contentPane, panel1, panel2; private JButton clearButton; private ItemListener itemChangeAction; private CaretListener caretAction; public StateChangedEventClass() { setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setLocationRelativeTo(null); contentPane = new JPanel(); contentPane.setLayout(new GridLayout(2, 2)); clearButton = new JButton("CLEAR"); clearButton.setEnabled(false); itemChangeAction = new ItemListener() { public void itemStateChanged(ItemEvent ce) { clearButton.setEnabled(true); } }; caretAction = new CaretListener() { public void caretUpdate(CaretEvent ce) { clearButton.setEnabled(true); } }; panel1 = new JPanel(); panel1.setLayout(new GridLayout(2 , 2)); JLabel userLabel = new JLabel("USERNAME : ", JLabel.CENTER); JTextField userField = new JTextField(10); userField.addCaretListener(caretAction); JLabel passLabel = new JLabel("PASSWORD : " + JLabel.CENTER); JTextField passField = new JTextField(10); passField.addCaretListener(caretAction); panel1.add(userLabel); panel1.add(userField); panel1.add(passLabel); panel1.add(passField); contentPane.add(panel1); panel2 = new JPanel(); panel2.setLayout(new GridLayout(2, 1)); JRadioButton maleButton = new JRadioButton("MALE", false); maleButton.addItemListener(itemChangeAction); JRadioButton femaleButton = new JRadioButton("FEMALE", false); femaleButton.addItemListener(itemChangeAction); ButtonGroup bg = new ButtonGroup(); bg.add(maleButton); bg.add(femaleButton); panel2.add(maleButton); panel2.add(femaleButton); contentPane.add(panel2); add(contentPane, BorderLayout.CENTER); add(clearButton, BorderLayout.PAGE_END); pack(); setVisible(true); } public void caretUpdate(CaretEvent ce) { clearButton.setEnabled(true); } public static void main(String... args) { SwingUtilities.invokeLater(new Runnable() { public void run() { new StateChangedEventClass(); } }); } } </code></pre>
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    1. COThanks! It works.
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    2. CO@pavithraCS : Your Welcome and Keep Smiling :-)
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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